Correlation of kinetic and thermodynamic quantities of Tl(I)/Tl(Hg) electroreduction with parameters of binary mixtures of water with acetone, acetonitrile, methanol, and N,N-dimethylformamide

被引:8
作者
Anastopoulos, AG [1 ]
Latsinoglou, T [1 ]
机构
[1] Aristotle Univ Thessaloniki, Dept Chem, Phys Chem Lab, Thessaloniki 54124, Greece
关键词
thallium electroreduction; binary mixtures; kinetic; thermodynamic parameters; solvatochromic parameters;
D O I
10.1007/s10953-005-8507-x
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The diffusion coefficient of Tl+ ions, the standard potential, the size factor of the activated complex, and the standard rate constant of the overall reaction Tl(I)/Tl(Hg) in aqueous mixtures of acetone, methanol, acetonitrile, and dimethylformamide are related to parameters representing the composition, polarity, electron pair, and hydrogen-bond donor ability of these mixtures. The dependencies on mixture composition, and the linear and multilinear correlation with solvatochromic parameters are interpreted by assuming a heterosolvation effect in combination with a two-step ion transfer - ion adsorption mechanism.
引用
收藏
页码:1341 / 1356
页数:16
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